| Abbreviation | Definition |
|---|---|
| PG | Printable Graph |
| PGA | Professional graphics adapter |
| PGDCA | Post Graduate Diploma in Computer Application |
| PGG | Pascal Gebruikers Groep |
| PGM | Portable Gray Map |
| PGN | Portable Game Notation |
| PGP | Professional GIS Practitioner |
| PH | Perl Header |
| PH | Public Html |
| PHD | Procedures Help Desk |
| PHD | Professional Hardware Diagnostics |
| PHIGS | Programmer's Hierarchical Interactive Graphics System |
| PHPMY | phpMyAdmin |
| PI | Pocket Informant |
| PI | Power Intelligence |
| PI | Priority Inherit |
| PI | Process Information |
| PIA | Peoplesoft Internet Architecture |
| PIA | Platform for Information Applications |
| PIB | Port Index Browser |